How to Secure Your Smart Home Devices From Cyber Threats

Quick Summary

Smart home devices make daily life more convenient, but every connected device is also a potential entry point for cybercriminals if not properly secured. This guide covers the most common smart home security risks and eight actionable steps you can take today to protect your devices, data, and family.

• Why Cybersecurity Matters at Home: The average US household now runs more than 22 connected devices, from cameras and smart locks to voice assistants and thermostats. As home networks grow, so does the importance of protecting them from unauthorized access.

• Smart Home Security Risks to Know: Common threats include weak and default passwords, outdated firmware, unsecured Wi-Fi networks, phishing scams, man-in-the-middle attacks, and always-on cameras and microphones. Roughly 40% of cyberattacks originate from home devices recruited into botnets.

• How to Secure Smart Home Devices: Eight practical steps—including changing default credentials, enabling multi-factor authentication, updating firmware, and creating a separate network for connected devices—address the most common vulnerabilities without requiring technical expertise.

• Can Smart Home Devices Be Hacked: Yes, but most smart home attacks exploit preventable weaknesses. A homeowner who changes default passwords, keeps devices updated, and segments their network is significantly harder to target.

• What to Look for When Buying Smart Devices: Prioritize brands with a track record of regular security updates, modern encryption standards, and clear privacy policies. A low-cost device with poor long-term support can become a security liability over time.

Your smart home makes daily life easier. A doorbell camera shows you who is at the front door before you open it. A smart lock lets you grant access to a guest while you are still at work. A connected thermostat adjusts the temperature before you walk through the door. A voice assistant like Alexa or Google Home ties it all together with a simple spoken command. These devices add convenience, comfort, and control to your household. But every device that connects to your home network also opens a potential entry point for cybercriminals.

Cybersecurity is no longer just a concern for businesses and IT departments. According to a Deloitte study the average US household now runs more than 22 connected devices, and the number of cyberattacks targeting home networks continues to grow each year. Protecting your digital home is just as important as protecting the physical one. This guide breaks down the smart home security risks that come with connected technology and walks you through clear, actionable steps to secure your devices, your data, and your family.

What Is Cybersecurity and Why Does It Matter at Home?

Cybersecurity refers to the practices, tools, and technologies designed to protect networks, devices, and data from unauthorized access, theft, or damage. For most people, cybersecurity used to mean installing antivirus software on a laptop and picking a decent email password. Today, that definition has expanded dramatically.

Today, home networks may include security cameras, smart speakers, connected locks, smart plugs, baby monitors, a video doorbell, a smart thermostat, and a Wi-Fi router tying everything together. Each of these devices, and add in smart assistants like Alexa or Google Home, work together through your home network to automate and simplify everyday tasks. Cybersecurity for smart homes means making sure these connected devices and systems stay protected and function securely.

Smart home devices like cameras, locks, and baby monitors are convenient—but like any connected technology, they can be vulnerable if not properly secured. Unauthorized access to camera feeds has been reported by real families, and large-scale events like the Mirai botnet showed how everyday Internet of Things (IoT) devices with weak security settings can be caught up in broader cyber incidents affecting millions of users.

Smart Home Security Risks Every Homeowner Should Know

Understanding the specific threats targeting connected devices is the first step toward protecting your home network. Think of these devices like your computer: pay attention to what you buy, the features you enable, and where everything is located. Here are the most common cybersecurity risks smart home owners face today.

Weak and Default Passwords

Many smart home devices ship with generic login credentials like "admin" and "1234." Cybercriminals maintain databases of these default passwords and can access devices in seconds if the owner never changes them during setup. Weak and default passwords are among the most commonly exploited vulnerabilities in smart home security—in one widely reported incident, a family discovered that strangers had been watching them through their own camera for weeks simply because the device still used its factory password.

Outdated Firmware and Unpatched Devices

Manufacturers release firmware updates to patch known security flaws in their devices. When those updates are not installed, the device remains exposed to vulnerabilities that attackers already know how to exploit. Unlike computers and smartphones that often update automatically, many IoT devices require manual updates. Devices that are too old to receive patches from their manufacturer are especially risky because known vulnerabilities will never be fixed.

Unsecured Home Wi-Fi Networks

Your Wi-Fi router is the gateway to every connected device in your house. A weak Wi-Fi password, outdated encryption protocol, or a router still running its factory-default name and credentials can give an attacker a direct path into your entire home network. Once inside the network, they can potentially access any device connected to it, including laptops and phones that hold sensitive financial and personal information.

Phishing and Social Engineering Scams

Phishing attacks are not limited to email anymore. Cybercriminals use text messages, phone calls, and even fake app notifications to trick homeowners into revealing passwords or clicking malicious links. A convincing message that appears to come from your smart home device provider or your internet service provider can lead to credential theft if you are not careful. Social engineering often works alongside phishing, with attackers posing as customer support representatives to gain your trust before requesting sensitive information.

Man-in-the-Middle Attacks

In a man-in-the-middle attack, a hacker intercepts communication between your smart device and its cloud server. This allows them to eavesdrop on data being transmitted, alter commands, or inject malicious instructions. For example, an attacker could intercept the video feed from a security camera, or a compromised thermostat could send falsified temperature data to the cloud. These attacks are difficult to detect because the device continues to function normally on the surface.

Always-On Cameras, Microphones, and Unexpected Entry Points

Not every threat comes from the devices you would expect. Anything that connects to your network can serve as a point of entry for bad actors. A smart TV with voice commands, a budget smart light bulb, or a connected kitchen appliance can all be compromised and used as a first access point to reach other devices on your Wi-Fi or even your wired network, including personal computers and phones. Roughly 40% of cyberattacks originate from home devices that have been recruited into a botnet, a method attackers use to hijack your equipment and use it to shut down other systems. Those attacks can be traced right back to your household. Meanwhile, devices with always-on microphones or cameras pose their own risk. Even when a smart assistant appears idle, it may still be passively listening or recording, capturing conversations and personal details that could be exploited if the device is compromised.

How to Secure Smart Home Devices: 8 Steps You Can Take Today

You do not need to be a cybersecurity expert to protect your connected home. Overall, these devices can make your life a lot easier, but they could also be a launchpad for bad actors. In most cases, the benefits outweigh the threats if you spend just a touch of time taking basic and reasonable steps to protect yourself and your loved ones. Here are 8 steps that address the most common vulnerabilities.

1. Change default usernames and passwords immediately. The moment you set up a new smart device, replace the factory username and password with a strong, unique combination. Use a mix of uppercase letters, lowercase letters, numbers, and special characters. This applies to every device you can access, and especially to the router from your internet provider. A password manager can help you generate and store complex credentials for every device without having to memorize them. Change these passwords periodically as ongoing maintenance.

2. Enable multi-factor authentication (MFA). If your device or its companion app supports MFA, turn it on. Multi-factor authentication adds a second verification step, usually a code sent to your phone, so a stolen password alone is not enough for an attacker to gain access. Encryption technology can also protect your private information by translating it into code and blocking unauthorized users. For example, Brinks Home uses unique encryption in its wireless home security systems to provide an extra layer of protection. Two-factor authentication further strengthens security by requiring two steps to reach important information, such as your internet connection followed by a code sent to your smartphone via your mobile network.

3. Keep firmware and software updated. Check for firmware updates at least once a month, or enable automatic updates whenever the option is available. Manufacturers release patches specifically to fix security vulnerabilities. Enable devices to update automatically where possible. If automatic updates are not available, check manually on a quarterly schedule at minimum. If a device is too old to receive updates from its manufacturer, consider replacing it with a model that still receives active security support.

4. Secure your Wi-Fi router. Change your router's default network name and password. Use Wi-Fi Protected Access 3 (WPA3) encryption if your router supports it, or Wi-Fi Protected Access 2 (WPA2) at minimum. Turn off remote management features you do not use, disable Wi-Fi Protected Setup (WPS), and make sure the router's own firmware is current.

5. Create a separate network for IoT devices. Most modern routers let you set up a guest or secondary network. Place your smart home devices on this separate network so that if one device is compromised, the attacker cannot easily reach your computers, phones, or sensitive financial data on your primary network. If you use professional installation for your smart home devices, ask the installer to place them on their own network, separate from your phones, tablets, and computers. This is one of the most effective steps you can take for home network security for IoT.

6. Disable features you do not use. Many smart devices come with microphones, cameras, location tracking, Bluetooth, or remote access features enabled by default. If a feature is not essential to how you use the device, turn it off in the device settings. Every active feature is a potential entry point for attackers.

7. Be cautious with voice commands and use physical privacy measures. Be very careful using your voice to ask smart devices to perform sensitive security tasks, such as unlocking a door. You may be vulnerable to a replay attack, where a recorded voice command is played back to trigger the device. Use physical camera covers to ensure visual privacy when cameras are not in use, and unplug devices with microphones if you do not want a conversation to be recorded.

8. Review and limit app permissions. Smart device companion apps often request access to your contacts, location, camera, microphone, and storage. Only grant the permissions the app genuinely needs to function. Review these permissions periodically and revoke anything that is not required. Use your router's admin panel or a network scanning app to periodically check which devices are connected to your home network. If you see an unfamiliar device, disconnect it immediately and investigate.

Can Smart Homes Be Hacked?

Yes, any device connected to the internet carries some degree of risk. Smart cameras, locks, thermostats, voice assistants, and even smart plugs can be targeted if they rely on weak passwords, outdated firmware, or an unsecured network. Research from the Institute of Electrical and Electronics Engineers (IEEE) has identified the most significant cybersecurity threats to smart home devices as unauthorized voice recordings, camera and microphone access, and location tracking.

The good news is that most smart home hacks exploit preventable vulnerabilities. The 8 steps outlined above address the most common attack vectors. A homeowner who changes default credentials, keeps devices updated, and segments their network is significantly harder to target than one who leaves devices in their out-of-the-box configuration. Know the quality of what you are buying, pay attention to the features you enable, and treat every connected device with the same care you would give your personal computer.

What to Look for When Buying Connected Devices

Not all smart devices are built with the same level of IoT device security. Before purchasing a new connected product, there are a few factors worth considering.

Know the quality of the device you are buying. Start by checking whether the manufacturer has a track record of providing regular firmware updates and patching known vulnerabilities. Devices from companies that abandon products shortly after release pose a long-term risk because future security flaws will never be addressed. Look for devices that support modern encryption standards like WPA3 and offer multi-factor authentication out of the box. Read the privacy policy to understand what data the device collects, where that data is stored, and whether it is shared with third parties. A cheap smart device with poor security could serve as an open door into your entire home network.

Get Started With Brinks Home™

A truly secure home is built on layers of protection—both physical and digital. Modern home security systems can help block unauthorized access to your data and devices through encryption, while features like two-factor authentication add an extra layer of verification by requiring a follow-up code sent to your smartphone. When your smart devices are properly secured and backed by a professionally monitored system, you get the full benefit of connected technology without unnecessary risk.

Brinks Home offers smart home automation, security cameras, smart locks, and 24/7 professional monitoring designed to work together and keep your household protected. If you are ready to build a smarter, more secure home, call us today at 866.675.7062 to explore your options.

Frequently Asked Questions

What is the biggest cybersecurity risk for smart home devices?

Weak and default passwords are the most commonly exploited vulnerability. Many devices ship with factory credentials that are publicly known, making them easy targets if the homeowner does not change them during setup. Changing passwords immediately and using a password manager is the most impactful single step you can take.

Can smart homes be hacked?

Yes. Any internet-connected device carries some level of risk. Smart cameras, locks, thermostats, and voice assistants can all be targeted through weak passwords, outdated firmware, or unsecured networks. However, following basic cybersecurity practices like the steps in this guide significantly reduces that risk.

Do I need antivirus software for my IoT devices?

Most IoT devices do not support traditional antivirus software. Instead, focus on network-level protection: secure your router with a strong password and modern encryption, keep device firmware updated, and place your smart devices on a separate Wi-Fi network from your computers and phones.

How often should I update my smart home device firmware?

Check for updates at least once a month, or enable automatic updates whenever the option is available. Manufacturers release patches to fix known security vulnerabilities, and delaying those updates leaves your devices exposed to threats that attackers are already aware of.

What should I look for when buying a new smart home device?

Look for brands with a track record of regular firmware updates and long-term security support. Prioritize devices that support modern encryption standards and offer multi-factor authentication out of the box. Before purchasing, review the privacy policy to understand what data is collected and how it is stored. A low-cost device with poor security practices can become a liability for your entire home network.